Electric device

Abstract

Provided is an electric device capable of suppressing vibration of a battery pack. Included are: a first housing 21 accommodating a load portion that consumes electric power; a second housing 22 having one end portion connected to the first housing 21 and another end portion to which a battery pack 9 is connectable; and an elastic member 40 interposed between the first housing and the second housing. The first housing includes a first restricting portion 42 positioned away from the elastic member, and the second housing includes a second restricting portion 44 positioned away from the elastic member and engageable with the first restricting portion. In a case where the second housing is urged to be separated from the first housing, the elastic member is deformed and the first restricting portion and the second restricting portion are engaged with each other to prevent separation.

The invention claimed is: 
     
       1. An electric device comprising:
 a first housing accommodating therein a load portion configured to consume an electric power; 
 a second housing having one end portion connected to the first housing and another end portion to which a battery pack is connectable; and 
 an elastic member interposed between the first housing and the second housing, wherein: 
 the first housing comprises a first restricting portion positioned away from the elastic member, 
 the second housing comprises a second restricting portion positioned away from the elastic member and engageable with the first restricting portion, and 
 in a case where the second housing is urged to be separated from the first housing, the elastic member is deformed and the first restricting portion and the second restricting portion are engaged with each other to prevent the second housing from being separated from the first housing. 
 
     
     
       2. The electric device according to  claim 1 , further comprising a second elastic member interposed between the one end portion of the second housing and a confronting portion of the first housing in confrontation with the second housing. 
     
     
       3. The electric device according to  claim 2 , wherein:
 one of the first restricting portion and the second restricting portion comprises a protruding portion protruding from one of the first housing and the second housing toward a remaining one of the first housing and the second housing, and 
 a remaining one of the first restricting portion and the second restricting portion comprises a recessed portion receiving the protruding portion with a gap provided therebetween. 
 
     
     
       4. The electric device according to  claim 3 , wherein the first housing comprises:
 a load accommodating portion accommodating the load portion therein; 
 a handle portion connected to the load accommodating portion and configured to be gripped by a user; and 
 a large diameter portion connected to the handle portion at a position opposite to the load accommodating portion with respect to the handle portion, the large diameter portion having a diameter greater than a diameter of the handle portion, and 
 wherein the elastic member, the first restricting portion, and the second restricting portion are positioned between the large diameter portion and the second housing. 
 
     
     
       5. The electric device according to  claim 3 , further comprising a control portion configured to control the load portion,
 wherein the control portion is accommodated in the large diameter portion. 
 
     
     
       6. The electric device according to  claim 2 ,
 wherein the first housing comprises:
 a load accommodating portion accommodating therein the load portion configured to consume an electric power; 
 a handle portion connected to the load accommodating portion and configured to be gripped by a user; and 
 a large diameter portion connected to the handle portion at a position opposite to the load accommodating portion with respect to the handle portion, the large diameter portion having a diameter greater than a diameter of the handle portion, the one end portion of the second housing being attached to the large diameter portion, the electric device further comprising a control portion accommodated in the large diameter portion and configured to control the load portion, and 
 
 wherein the elastic member is interposed between the large diameter portion and the one end portion of the second housing to connect the second housing to the large diameter portion. 
 
     
     
       7. The electric device according to  claim 6 , wherein:
 the second housing is spaced away from the large diameter portion only by the elastic member, and 
 the large diameter portion comprises the first restriction portion. 
 
     
     
       8. The electric device according to  claim 6 , further comprising a second elastic member interposed between the one end portion of the second housing and a confronting portion of the large diameter portion, the confronting portion being in confrontation with the one end portion of the second housing. 
     
     
       9. The electric device according to  claim 6 , wherein:
 the large diameter portion has a generally hollow cylindrical shape having an outer peripheral surface, the large diameter portion having an attachment portion on the outer peripheral surface, the elastic member being attached to the attachment portion, 
 the second housing has an engagement portion with which the elastic member is engaged in a state where the second housing is connected to the large diameter portion, and 
 the elastic member has a circular cross-section taken along a plane extending in a radial direction thereof. 
 
     
     
       10. The electric device according to  claim 1 , wherein:
 one of the first restricting portion and the second restricting portion comprises a protruding portion protruding from one of the first housing and the second housing toward a remaining one of the first housing and the second housing, and 
 a remaining one of the first restricting portion and the second restricting portion comprises a recessed portion receiving the protruding portion with a gap provided therebetween. 
 
     
     
       11. The electric device according to  claim 1 , wherein the first housing comprises:
 a load accommodating portion accommodating the load portion therein; 
 a handle portion connected to the load accommodating portion and configured to be gripped by a user; and 
 a large diameter portion connected to the handle portion at a position opposite to the load accommodating portion with respect to the handle portion, the large diameter portion having a diameter greater than a diameter of the handle portion, and 
 wherein the elastic member, the first restricting portion, and the second restricting portion are positioned between the large diameter portion and the second housing. 
 
     
     
       12. The electric device according to  claim 11 , further comprising a control portion configured to control the load portion,
 wherein the control portion is accommodated in the large diameter portion. 
 
     
     
       13. The electric device according to  claim 1 ,
 wherein the first housing comprises:
 a load accommodating portion accommodating therein the load portion configured to consume an electric power; 
 a handle portion connected to the load accommodating portion and configured to be gripped by a user; and 
 a large diameter portion connected to the handle portion at a position opposite to the load accommodating portion with respect to the handle portion, the large diameter portion having a diameter greater than a diameter of the handle portion, the one end portion of the second housing being attached to the large diameter portion, the electric device further comprising a control portion accommodated in the large diameter portion and configured to control the load portion, and 
 
 wherein the elastic member is interposed between the large diameter portion and the one end portion of the second housing to connect the second housing to the large diameter portion. 
 
     
     
       14. The electric device according to  claim 13 , wherein:
 the second housing is spaced away from the large diameter portion only by the elastic member, and 
 the large diameter portion comprises the first restriction portion. 
 
     
     
       15. The electric device according to  claim 13 , further comprising a second elastic member interposed between the one end portion of the second housing and a confronting portion of the large diameter portion, the confronting portion being in confrontation with the one end portion of the second housing. 
     
     
       16. The electric device according to  claim 13 , wherein:
 the large diameter portion has a generally hollow cylindrical shape having an outer peripheral surface, the large diameter portion having an attachment portion on the outer peripheral surface, the elastic member being attached to the attachment portion, 
 the second housing has an engagement portion with which the elastic member is engaged in a state where the second housing is connected to the large diameter portion, and 
 the elastic member has a circular cross-section taken along a plane extending in a radial direction thereof. 
 
     
     
       17. The electric device according to  claim 1 , wherein the first housing comprises a first attachment portion for receiving the elastic member, wherein:
 the second housing comprises a second attachment portion for receiving the elastic member, and 
 the elastic member is received in a space defined by the first attachment portion and the second attachment portion in a state where the second housing is connected to the first housing.